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  • Users: Rocketir
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  1. Rocketir

    120/240 Y transformers.

    I had a customer request a 3phase 4 wire 120v l-n, 240v l-l wye connected voltage transformer. 120 l-n on each phase and 240 l-l across each phase. I had never heard of this? Does any utility use these? We currently have the 120/208 with three 120 l-n's and the 208 l-l. We also have the...
  2. Rocketir

    Hello All, I am looking for more i

    Hello All, I am looking for more information regarding the characteristics of and protection of autobanks. I have a 21 kV 4 Wire feeder feeding an autobank as well as other connected load. The autobank is a 21/12 auto Y connected with H0/X0 grounded and closed tertiary. The 12 kV side is also...

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